Can someone please help me with the following question?
On page 90 of Todd Lammle's CCNA study guide, it asks the question:
What is used to determine the designated port on a bridge?
A. Priority
B. Cost of the links attached to the switch
C. MAC Address
D. IP Address
According to the answer at the end of the chapter, is says the answer is B.
For switches to determine the designated ports, the cost of the links
attached to each switch is used.
But on page 84, it reads: To determine the designated ports on the
switches, the bridge ID is used. On page 80 it reads: The bridge ID is 8
bytes long and includes the priority and the MAC address of the device.
So , as far as I can see, the answer should be A.
Or does it mean that when determining the designated port, you must first
look at the cost to the root bridge, and then at the bridge ID?
Am I missing something here?
Thank you
Regards
Darryn
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